Acoustic Specifications; Table 52 Acoustic Specifications - Omni-M-Pa32128Pr; Dmta-20015-01En [U8778402], Rev. M, February - Olympus OmniScan MX User Manual

DMTA-20015-01EN [U8778402], Rev. M, February 2017

I.1

Acoustic Specifications

This section lists the acoustic specifications for the pulser, receiver, and beam
formation (see Table 52 on page 162).
Table 52 Acoustic specifications — OMNI-M-PA32128PR
Voltage
Pulse width
Fall time
Pulse shape
Output impedance
Gain range
Input impedance
System bandwidth
Scan type
Aperture
Number of elements
Number of focal laws
Delay range transmission 0 µs to 10 µs in 2.5 ns increments
Delay range reception
162 Appendix I
Pulser
Low: 45 V
High: 90 V
Adjustable from 30 ns to 500 ns; resolution
of 2.5 ns
<5 ns
Negative square pulse
<30 Ω
Receiver
0 dB to 74 dB in steps of 0.1 dB, maximum
input signal 1.3 Vp-p (pulse-echo channel)
and 0.9 Vp-p (pitch-catch channel)
50 Ω (pulse-echo channel) and 150 Ω (pitch-
catch channel)
0.53 MHz to 21 MHz, ±10 % (−3 dB)
Beam formation
Sectorial and linear
32 elements
128 elements
256
0 µs to 10 µs in 2.5 ns increments